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Managing posterior pressure during pseudophakic keratoplasty
D L McCartney1, J D Gottsch, W J Stark
1Department of Ophthalmology, Texas Tech University, Lubbock 79430.
Archives of Ophthalmology (Chicago, Ill. : 1960)
|September 1, 1989
Summary
Managing positive vitreous pressure during penetrating keratoplasty is crucial. A simple 27-gauge needle technique can stabilize intraocular lenses and restore anterior chamber depth, preventing vitreous loss during surgery.
Area of Science:
- Ophthalmology
- Surgical Techniques
- Corneal Surgery
Background:
- Positive vitreous pressure during penetrating keratoplasty poses significant management challenges.
- Failure to manage this pressure can lead to serious intraoperative complications, including vitreous loss.
Purpose of the Study:
- To describe an effective intraoperative technique for managing persistent positive vitreous pressure during penetrating keratoplasty.
- To demonstrate a method for restoring anterior segment anatomy and preventing vitreous loss when implanting a pseudophakos.
Main Methods:
- A novel technique utilizing a 27-gauge needle passed across the anterior chamber.
- The needle insertion spans from limbus to limbus, positioned anterior to the iris.
Main Results:
- The technique effectively stabilizes the pseudophakos during implantation.
- It successfully restores anterior chamber depth, facilitating donor-tissue suturing.
- The method prevents vitreous loss in cases of persistent positive vitreous pressure.
Conclusions:
- This 27-gauge needle technique offers a valuable intraoperative solution for managing positive vitreous pressure in penetrating keratoplasty.
- It enhances surgical safety and improves outcomes by preventing complications and ensuring proper anterior segment reconstruction.